Display apparatus and control method thereof

Abstract

Disclosed are a display apparatus and a method of controlling the same. a display apparatus including: a display; an optical sensor; and a processor configured to: identify an operation cycle shorter than an idle section of an infrared (IR) signal and including at least a part of a section for a detection operation of the optical sensor, based on the IR signal of which a signal section corresponding to a user key input and the idle section are repeated on a predetermined cycle, control the optical sensor to repetitively perform the detection operation on the identified operation cycle, and perform a predetermined operation based on a detection value obtained by the detection operation of the optical sensor.

What is claimed is: 
     
       1. An electronic apparatus comprising:
 an optical sensor; and 
 a processor configured to:
 identify, based on an infrared (IR) signal having a signal section corresponding to a user key input and an idle section repeated on a predetermined cycle, an operation cycle of the optical sensor to be shorter than the idle section and to have at least a minimal length needed for the optical sensor to detect light according to a purpose for which the optical sensor is to be used and to obtain a detection value corresponding to the detected light, 
 control the optical sensor to switch to the identified operation cycle from a previous operation cycle of the optical sensor, and to repetitively perform a detection operation based on more than one pulse of the identified operation cycle occurring in a respective idle section of the IR signal while the IR signal is being received by or emitted from the electronic apparatus, to thereby obtain a plurality of detection values, 
 identify whether a respective detection value among the plurality of detection values is lower than a predetermined value, 
 when it is identified that a respective detection value among the plurality of detection values is lower than the predetermined value,
 compensate the respective detection value based on the identified operation cycle, and 
 perform an operation based on the compensated detection value, 
 
 wherein the identified operation cycle has a shorter period than the previous operation cycle. 
 
 
     
     
       2. The electronic apparatus according to  claim 1 , wherein the processor is configured to:
 when it is identified that a respective detection value among the plurality of detection values is not lower than the predetermined value, control the optical sensor to continue to repetitively perform the detection operation based on more than one pulse of the identified operation cycle occurring in a respective idle section of the IR signal while the IR signal is being received by or emitted from the electronic apparatus, without performing the operation. 
 
     
     
       3. The electronic apparatus according to  claim 1 , wherein the processor is configured to identify the operation cycle to be shorter than or equal to half of the idle section. 
     
     
       4. The electronic apparatus according to  claim 1 , further comprising:
 an IR emitter configured to emit the IR signal. 
 
     
     
       5. The electronic apparatus according to  claim 1 , wherein the processor is configured to identify the operation cycle based on the IR signal detected by the optical sensor. 
     
     
       6. The electronic apparatus according to  claim 1 , wherein the processor is configured to compensate the respective detection value based on a ratio of a length of the identified operation cycle to a length of an original operation cycle of optical sensor. 
     
     
       7. The electronic apparatus according to  claim 1 , wherein the processor is further configured to:
 identify an end of an emission of the IR signal, and 
 in response to identifying the end of the emission of the IR signal, control the optical sensor to perform the detection operation based on an original operation cycle of the optical sensor instead of based on the identified operation cycle. 
 
     
     
       8. The electronic apparatus according to  claim 1 , wherein the processor is configured to identify the operation cycle by stepwise changing a current operation cycle of the optical sensor. 
     
     
       9. The electronic apparatus according to  claim 1 , wherein the processor is configured to differently compensate the respective detection value in accordance with the purpose for which the optical sensor is to be used. 
     
     
       10. A method of controlling an electronic apparatus including an optical sensor, comprising:
 identifying, based on an infrared (IR) signal having a signal section corresponding to a user key input and an idle section repeated on a predetermined cycle, an operation cycle of the optical sensor to be shorter than the idle section and to have at least a minimal length needed for the optical sensor to detect light according to a purpose for which the optical sensor is to be used and to obtain a detection value corresponding to the detected light; 
 controlling the optical sensor to switch to the identified operation cycle from a previous operation cycle of the optical sensor, and to repetitively perform a detection operation based on more than one pulse of the identified operation cycle occurring in a respective idle section of the IR signal while the IR signal is being received by or emitted from the electronic apparatus, to thereby obtain a plurality of detection values; 
 identifying whether a respective detection value among the plurality of detection values is lower than a predetermined value; 
 when it is identified that a respective detection value among the plurality of detection values is lower than the predetermined value,
 compensating the respective detection value based on the identified operation cycle, and 
 performing an operation based on the compensated detection value, 
 
 wherein the identified operation cycle has a shorter period than the previous operation cycle. 
 
     
     
       11. The method according to  claim 10 , further comprising:
 when it is identified that a respective detection value among the plurality of detection values is not lower than the predetermined value, controlling the optical sensor to continue to repetitively perform the detection operation based on more than one pulse of the identified operation cycle occurring in a respective idle section of the IR signal while the IR signal is being received by or emitted from the electronic apparatus, without performing the operation. 
 
     
     
       12. The method according to  claim 10 , wherein the identifying of the operation cycle comprises identifying the operation cycle to be shorter than or equal to half of the idle section. 
     
     
       13. The method according to  claim 10 , wherein
 the electronic apparatus further comprises an IR emitter configured to emit the IR signal. 
 
     
     
       14. The method according to  claim 10 , wherein:
 the identifying of the operation cycle comprises identifying the operation cycle based on the IR signal detected by the optical sensor. 
 
     
     
       15. The method according to  claim 10 , wherein the compensating compensates the respective detection value based on a ratio of a length of the identified operation cycle to a length of an original operation cycle of the optical sensor. 
     
     
       16. The method according to  claim 10 , further comprising:
 identifying an end of an emission of the IR signal, and 
 in response to identifying the end of the emission of the IR signal, controlling the optical sensor to perform the detection operation based on an original operation cycle of the optical sensor instead of based on the identified operation cycle. 
 
     
     
       17. The method according to  claim 10 , wherein the identifying of the operation cycle comprises identifying the operation cycle by stepwise changing a current operation cycle of the optical sensor. 
     
     
       18. The method according to  claim 10 , wherein the compensating differently compensates the respective detection value in accordance with the purpose for which the optical sensor is to be used. 
     
     
       19. An electronic apparatus comprising:
 an optical sensor; and 
 a processor configured to:
 identify, based on an infrared (IR) signal having a signal section corresponding to a user key input and an idle section repeated on a predetermined cycle, an operation cycle of the optical sensor to be shorter than the idle section and to have at least a minimal length needed for the optical sensor to detect light according to a purpose for which the optical sensor is to be used and to obtain a detection value corresponding to the detected light, 
 control the optical sensor to switch to the identified operation cycle from a previous operation cycle of the optical sensor, and to repetitively perform a detection operation based on more than one pulse of the identified operation cycle occurring in a respective idle section of the IR signal while the IR signal is being received by or emitted from the electronic apparatus, to thereby obtain a plurality of detection values, 
 identify a respective detection value among the plurality of detection values that is lower than a predetermined value, 
 perform an operation based on the identified detection value, 
 identify an end of an emission of the IR signal, and 
 in response to identifying the end of the emission of the IR signal, control the optical sensor to perform the detection operation based on an original operation cycle of the optical sensor instead of based on the identified operation cycle, 
 wherein the identified operation cycle has a shorter period than the previous operation cycle. 
 
 
     
     
       20. An electronic apparatus comprising:
 an optical sensor; and 
 a processor configured to:
 identify, based on an infrared (IR) signal having a signal section corresponding to a user key input and an idle section repeated on a predetermined cycle, an operation cycle of the optical sensor to be shorter than the idle section and to have at least a minimal length needed for the optical sensor to detect light according to a purpose for which the optical sensor is to be used and to obtain a detection value corresponding to the detected light, 
 control the optical sensor to switch to the identified operation cycle from a previous operation cycle of the optical sensor, and to repetitively perform a detection operation based on more than one pulse of the identified operation cycle occurring in a respective idle section of the IR signal while the IR signal is being received by or emitted from the electronic apparatus, to thereby obtain a plurality of detection values, 
 identify a respective detection value among the plurality of detection values that is lower than a predetermined value, and 
 perform an operation based on the identified detection value, 
 wherein the identified operation cycle has a shorter period than the previous operation cycle, and the processor is configured to identify the operation cycle by stepwise changing a current operation cycle of the optical sensor. 
 
 
     
     
       21. A method of controlling an electronic apparatus including an optical sensor, comprising:
 identifying, based on an infrared (IR) signal having a signal section corresponding to a user key input and an idle section repeated on a predetermined cycle, an operation cycle of the optical sensor to be shorter than the idle section and to have at least a minimal length needed for the optical sensor to detect light according to a purpose for which the optical sensor is to be used and to obtain a detection value corresponding to the detected light; 
 controlling the optical sensor to switch to the identified operation cycle from a previous operation cycle of the optical sensor, and to repetitively perform a detection operation based on more than one pulse of the identified operation cycle occurring in a respective idle section of the IR signal while the IR signal is being received by or emitted from the electronic apparatus, to thereby obtain a plurality of detection values; 
 identifying, among the plurality of detection values, a respective detection value that is lower than a predetermined value; 
 performing an operation based on the identified detection value; 
 identifying an end of an emission of the IR signal; and 
 in response to identifying the end of the emission of the IR signal, controlling the optical sensor to perform the detection operation based on an original operation cycle of the optical sensor instead of based on the identified operation cycle, 
 wherein the identified operation cycle has a shorter period than the previous operation cycle. 
 
     
     
       22. A method of controlling an electronic apparatus including an optical sensor, comprising:
 identifying, based on an infrared (IR) signal having a signal section corresponding to a user key input and an idle section repeated on a predetermined cycle, an operation cycle of the optical sensor to be shorter than the idle section and to have at least a minimal length needed for the optical sensor to detect light according to a purpose for which the optical sensor is to be used and to obtain a detection value corresponding to the detected light; 
 controlling the optical sensor to switch to the identified operation cycle from a previous operation cycle of the optical sensor, and to repetitively perform a detection operation based on more than one pulse of the identified operation cycle occurring in a respective idle section of the IR signal while the IR signal is being received by or emitted from the electronic apparatus, to thereby obtain a plurality of detection values; 
 identifying, among the plurality of detection values, a respective detection value that is lower than a predetermined value; and 
 performing an operation based on the identified detection value, 
 wherein the identified operation cycle has a shorter period than the previous operation cycle, and the identifying of the operation cycle comprises identifying the operation cycle by stepwise changing a current operation cycle of the optical sensor.